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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and properties of novel fluoroalkyl end-capped oligomers containing silsesquioxane segments
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Synthesis and properties of novel fluoroalkyl end-capped oligomers containing silsesquioxane segments

机译：含倍半硅氧烷链段的新型氟代烷基封端低聚物的合成与性能

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Fluoroalkyl end-capped homo- and cooligomers containing silsesquioxane segments were prepared by the reactions of fluoroalkanoyl peroxides with the corresponding methacrylate monomer-bearing silsesquioxane unit (Si-MMA) and comonomers such as N,N-dimethyl-acrylamide (DMAA) and acrylic acid (ACA). These new fluorinated Si-MMA oligomers were easily soluble in various organic solvents and were able to reduce the surface tension of m-xylene effectively. The modified poly(methyl methacrylate) [PMMA] and glass surface treated with fluorinated Si-MMA homo-oligomers exhibited a strong oleophobicity, although these fluorinated oligomers possess high oleophilic silsesquioxane segments. In contrast, the modified PMMA surface treated with fluorinated Si-MMA-DMAA cooligomers exhibited a good hydrophilicity with a strong oleophobicity. In a series of fluorinated Si-MMA oligomers, fluorinated Si-MMA homo-oligomers had a relatively high thermal stability. Therefore, these fluoroalkyl end-capped Si-MMA oligomers are suggested to have high potential for new functional materials through their unique properties such as a high solubility and surface active properties. (C) 2002 Wiley Periodicals, Inc. [References: 41]
机译：含硅倍半氧烷链段的含氟烷基端基的均聚物和冷聚物，是通过氟代链烷酰过氧化物与相应的带有甲基丙烯酸酯单体的倍半硅氧烷单元（Si-MMA）和共聚单体（如N，N-二甲基丙烯酰胺（DMAA）和丙烯酸）反应制得的（ACA）。这些新型的氟化Si-MMA低聚物易于溶于各种有机溶剂，并且能够有效降低间二甲苯的表面张力。改性的聚（甲基丙烯酸甲酯）[PMMA]和经氟化Si-MMA均聚物处理的玻璃表面显示出很强的疏油性，尽管这些氟化低聚物具有高亲油性倍半硅氧烷链段。相反，用氟化的Si-MMA-DMAA冷却剂处理的改性PMMA表面表现出良好的亲水性和强疏油性。在一系列氟化Si-MMA低聚物中，氟化Si-MMA均聚物具有相对较高的热稳定性。因此，建议这些氟代烷基封端的Si-MMA低聚物通过其独特的特性（例如高溶解度和表面活性特性）而具有用于新功能材料的高潜力。 （C）2002 Wiley Periodicals，Inc. [参考：41]

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